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CVE-2026-42965

Last refreshed2026-10-03

Status: UPDATED  |  Advisory ID: CVE-2026-42965

Key Details

CVECVE-2026-42965
CVSS Score / Version7.7 (High) / CVSS v3.1
Updated2026-10-01
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is none; availability impact is none.
Affected productssee table below
Classified asCWE-918 (Server-Side Request Forgery (SSRF))

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Red HatOpenShift Container Platform
Red HatRed Hat OpenShift Container Platform 4.17
Red HatRed Hat OpenShift Container Platform 4.18
Red HatRed Hat OpenShift Container Platform 4.19
Red HatRed Hat OpenShift Container Platform 4
Red Hatopenshift_router
Red HatRed Hat OpenShift Container Platform 4.20
Red HatRed Hat OpenShift Container Platform 4.21
Red HatRed Hat OpenShift Container Platform 4.22
SubsystemsCore Infrastructure
SectorsMultiple

What to Know

A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses. (NVD)

What to Do

Monitor Red Hat's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-42965
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-42965
Vendor advisoryhttps://access.redhat.com/security/cve/CVE-2026-42965